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| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you under the Apache License, Version 2.0 (the * |
| * "License"); you may not use this file except in compliance * |
| * with the License. You may obtain a copy of the License at * |
| * * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
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| * specific language governing permissions and limitations * |
| * under the License. * |
| ****************************************************************/ |
| |
| package org.apache.james.mime4j.storage; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.james.mime4j.util.ContentUtil; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class StorageProviderTest { |
| |
| @Test |
| public void testMemoryStorageProvider() throws Exception { |
| StorageProvider provider = new MemoryStorageProvider(); |
| |
| testReadWrite(provider, 0); |
| testReadWrite(provider, 1); |
| testReadWrite(provider, 1024); |
| testReadWrite(provider, 20000); |
| |
| testDelete(provider); |
| } |
| |
| @Test |
| public void testTempFileStorageProvider() throws Exception { |
| StorageProvider provider = new TempFileStorageProvider(); |
| |
| testReadWrite(provider, 0); |
| testReadWrite(provider, 1); |
| testReadWrite(provider, 1024); |
| testReadWrite(provider, 20000); |
| |
| testDelete(provider); |
| } |
| |
| @Test |
| public void testThresholdStorageProvider() throws Exception { |
| final int threshold = 5000; |
| StorageProvider backend = new TempFileStorageProvider(); |
| StorageProvider provider = new ThresholdStorageProvider(backend, |
| threshold); |
| |
| testReadWrite(provider, 0); |
| testReadWrite(provider, 1); |
| testReadWrite(provider, threshold - 1); |
| testReadWrite(provider, threshold); |
| testReadWrite(provider, threshold + 1); |
| testReadWrite(provider, 2 * threshold); |
| testReadWrite(provider, 10 * threshold); |
| |
| testDelete(provider); |
| } |
| |
| @Test |
| public void testCipherStorageProvider() throws Exception { |
| StorageProvider backend = new TempFileStorageProvider(); |
| StorageProvider provider = new CipherStorageProvider(backend); |
| |
| testReadWrite(provider, 0); |
| testReadWrite(provider, 1); |
| testReadWrite(provider, 1024); |
| testReadWrite(provider, 20000); |
| |
| testDelete(provider); |
| } |
| |
| private void testReadWrite(StorageProvider provider, int size) |
| throws IOException { |
| testStore(provider, size); |
| testCreateStorageOutputStream(provider, size); |
| } |
| |
| private void testStore(StorageProvider provider, int size) |
| throws IOException { |
| byte[] data = createData(size); |
| Assert.assertEquals(size, data.length); |
| |
| Storage storage = provider.store(new ByteArrayInputStream(data)); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ContentUtil.copy(storage.getInputStream(), baos); |
| verifyData(data, baos.toByteArray()); |
| } |
| |
| private void testCreateStorageOutputStream(StorageProvider provider, |
| int size) throws IOException { |
| byte[] data = createData(size); |
| Assert.assertEquals(size, data.length); |
| |
| StorageOutputStream out = provider.createStorageOutputStream(); |
| ContentUtil.copy(new ByteArrayInputStream(data), out); |
| Storage storage = out.toStorage(); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ContentUtil.copy(storage.getInputStream(), baos); |
| verifyData(data, baos.toByteArray()); |
| } |
| |
| private void verifyData(byte[] expected, byte[] actual) { |
| Assert.assertEquals(expected.length, actual.length); |
| for (int i = 0; i < expected.length; i++) { |
| Assert.assertEquals(expected[i], actual[i]); |
| } |
| } |
| |
| private byte[] createData(int size) { |
| byte[] data = new byte[size]; |
| for (int i = 0; i < size; i++) { |
| data[i] = (byte) i; |
| } |
| return data; |
| } |
| |
| private void testDelete(StorageProvider provider) throws IOException { |
| Storage storage = provider.store(new ByteArrayInputStream( |
| createData(512))); |
| |
| storage.delete(); |
| |
| // getInputStream has to throw an IllegalStateException |
| try { |
| storage.getInputStream(); |
| Assert.fail(); |
| } catch (IllegalStateException expected) { |
| } |
| |
| // invoking delete a second time should not have any effect |
| storage.delete(); |
| } |
| |
| } |